168722318304 has 576 divisors, whose sum is σ = 552789619200. Its totient is φ = 50404902912.

The previous prime is 168722318263. The next prime is 168722318321. The reversal of 168722318304 is 403813227861.

168722318304 is a `hidden beast` number, since 1 + 6 + 8 + 7 + 22 + 318 + 304 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 168722318304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 227082157 + ... + 227082899.

It is an arithmetic number, because the mean of its divisors is an integer number (959704200).

Almost surely, 2^168722318304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 168722318304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (276394809600).

168722318304 is an abundant number, since it is smaller than the sum of its proper divisors (384067300896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168722318304 is a wasteful number, since it uses less digits than its factorization.

168722318304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869 (or 849 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 168722318304 in words is "one hundred sixty-eight billion, seven hundred twenty-two million, three hundred eighteen thousand, three hundred four".